martin luther king jr.'s, as well as his political hero's bible, abraham lincoln. >> after his inauguration speech, the president and first lady will make the traditional walk down pennsylvania avenue toward the white house. >> ahead of today's ceremonies, the president and first lady made the rounds in washington. they told a crowd that the celebrations are about the country and its citizens, not the election results. also vice president joe biden and his family greeted supporters at the latino inaugural party. >> hundreds of thousands are gathering on the national mall to see history being made. >> and while officials say right now there is no credible threat, security, as you can imagine, is once again extremely tight. >> reporter: they will be everywhere, snipers dotting roof tops, the coast guard patrolling waterways, military fighter jets enforcing a no-fly zone. 13,000 security personnel blanketing the washington mall. >> protecting an event this large, this complex with this number of people coming r